Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4785878 | Double-spiral heat exchanger | Tero T. Tiitola | 1988-11-22 |
| 4306618 | Pipe spiral bundle for a heat exchanger | — | 1981-12-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4785878 | Double-spiral heat exchanger | Tero T. Tiitola | 1988-11-22 |
| 4306618 | Pipe spiral bundle for a heat exchanger | — | 1981-12-22 |